We also can help nature to purify the air. We all know that plant have a great protection function; they help us make this world a little bit cleaner, protecting from harmful substances. It means that we should plant and grow more greenery. In such a way we will make our world safer and cleaner. Besides, coniferous plants influence positively human health producing essential oils. It is a must to grow the plant to protect yourself from pollution. If you do not have possibility to plant a tree at your house, at least you can buy home plant and you will have your own clean world inside your home.
During the 1930s the Nazis had elements that were supportive of animal rights, zoos and wildlife,  and took several measures to ensure their protection.  In 1933 the government created a stringent animal-protection law and in 1934, Das Reichsjagdgesetz (The Reich Hunting Law) was enacted which limited hunting.   Several Nazis were environmentalists (notably Rudolf Hess ), and species protection and animal welfare were significant issues in the regime.  In 1935, the regime enacted the "Reich Nature Protection Act" ( Reichsnaturschutzgesetz ). The concept of the Dauerwald (best translated as the "perpetual forest") which included concepts such as forest management and protection was promoted and efforts were also made to curb air pollution . 
Forests will undergo some hard times. Each type of tree requires a specific climate. Thus, the growing area for each species will shift northward by 100 to 600 miles. This sounds innocuous, but adjustment periods will be difficult, with lots of die-off in the South and slow build-up in the North. Forests are constantly under stress from insects, diseases, competition with other plants, fires, wind, and the like. The added stress of changing climate is certain to cause trouble. A great deal of research and planning will be needed to cope with it.